Playing computer games ____ the boy so muchtime that he doesn’t have enough time to study.

下列各句中，没有语病的一句是

Can we make this plan a week later– No, we can’t put off _______ it becausethe meeting is only two days from now.

In the meantime, the question facingbusiness is whether such research is ______ the costs.

56 He said under his breath that he wouldkeep the secret The underlined part means _____